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22666468 = 22111921427
BaseRepresentation
bin101011001110…
…1110011100100
31120122120112211
41112131303210
521300311333
62125453204
7363442666
oct126356344
946576484
1022666468
1111881720
127711204
134908016
143020536
151ecaecd
hex159dce4

22666468 has 36 divisors (see below), whose sum is σ = 45701712. Its totient is φ = 9753840.

The previous prime is 22666463. The next prime is 22666471. The reversal of 22666468 is 86466622.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22666468.

It is not an unprimeable number, because it can be changed into a prime (22666463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15171 + ... + 16597.

It is an arithmetic number, because the mean of its divisors is an integer number (1269492).

Almost surely, 222666468 is an apocalyptic number.

It is an amenable number.

22666468 is an abundant number, since it is smaller than the sum of its proper divisors (23035244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22666468 is a wasteful number, since it uses less digits than its factorization.

22666468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1459 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 22666468 is about 4760.9314214763. The cubic root of 22666468 is about 283.0053314682.

The spelling of 22666468 in words is "twenty-two million, six hundred sixty-six thousand, four hundred sixty-eight".

Divisors: 1 2 4 11 19 22 38 44 76 209 361 418 722 836 1427 1444 2854 3971 5708 7942 15697 15884 27113 31394 54226 62788 108452 298243 515147 596486 1030294 1192972 2060588 5666617 11333234 22666468